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3 years ago

14

If the scale factor is 1:5 and OG = 45, find AR.

1 answer:

saveliy_v [14]3 years ago

5 0

1/5=.2
.2*45=AR
AR=9

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27. The interest rate that doubles a sum in 10 years is<br>a) 12%<br>b) 11%<br>c) 10%<br>d) 9%

avanturin [10]

Answer:

Interest rate of 7%.

Step-by-step explanation:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

In this question:

We want to find t for which $A(t) = 2P$ when $n = 1, t = 10$ . So

$A(t) = P(1 + \frac{r}{n})^{nt}$

$2P = P(1 + r)^{10}$

$(1 + r)^10 = 2$

$\sqrt[10]{(1 + r)^10} = \sqrt[10]{2}$

$1 + r = 1.07$

$r = 0.07$

So a interest rate of 7%.

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3 years ago

4 2/8 As A Improper Fraction

DanielleElmas [232]

The answer would be: 17/4

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4 years ago

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Rom4ik [11]

Answer:

<h2><u>47.5</u></h2>

Step-by-step explanation:

Median - The middle number in a list of numbers starting from least to greatest.

Knowing this, we can start.

The first step is to rewrite all the numbers from least to greatest

15, 19, 28, 32, 43, 52, 66, 72, 72, 81

Now cross off a number from the least and greatest until there is 1 or 2 numbers left

19, 28, 32, 43, 52, 66, 72, 72

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If you are left we 1 number, that is your answer. If you are left with 2 numbers, there is an extra step

In the case that you have 2 numbers, you need to add them together, and divide by 2

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Answer:

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Phantasy [73]

x=3k

y=3k

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3 years ago

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